If all I pick up is 8% (which I doubt seriously) so what, 8% is still 8% more than I had, plus I've dumped around 30 lbs all things considered. (airbox, exhaust, 250 wheel conversion, rear fender, steel foot pegs replaced with Aluminum etc.) The total package is not solely about HP its about power to weight ratio. Also when the Cycle tested the Gen 1 back in 87 they mentioned that carburetion and tall gearing were the EXs draw backs and I believe that to be correct after riding it, with the mods I've done this bike runs neck in neck with my friends stock KZ900 and it hasn't been geared or timing advanced yet, we are both drag racers used to winning, the difference in rider is negligible and the only thing separating us today was who got the drop out of the hole, this 500 will run with a well maintained KZ900 any day all day. Where do you live? Do you have a drag strip near by? What say we have a little drag race to test my work against the airbox and dual exhaust theory, the boy and I are looking for a road trip this summer, I'm not talking California, but I'd drive a few hundred miles either way from Omaha and if you happen to live in the central or north east states I'll be out there in late July/early August. Hell maybe we can even have a dyno pull in the same place at the same time as we all know that different dynos in different places give different readings even the same dyno can give different reading from pull to pull. I've heard all the talk "don't take off the airbox or you'll have a flat spot you can't fix", "don't use a full exhaust", basically don't do any thing that works on every other normally aspirated bike in the world apparently the EXs are some kind of special lame piece of crap that nothing works on, well it's time to put up or shut up, maybe if it's to far you can meet me half way what say you? Enough B.S I'm ready!